A reset can reboot your product or it can clear all product settings and revert your product to its original out-of-box state. If you encounter issues like automatic shutdown & reboot, frozen on Nebula logo, colorful lines or unable to power the device on, please try to factory reset the projector. 

To Restore to the Factory Default Settings: 
Note: This reset erases all settings and data on your projector and reverts the product to its default out-of-box state.

• Single click the "Power" button on the device to turn it on.
• Immediately press and hold the "Power" button until the Android page appears.
• Select "Wipe data/factory reset".